5-Bromo-[1,2,4]triazolo[4,3-a]pyridin-3(2H)-one CAS 864933-07-3
| CAS No. | 864933-07-3 |
| Molecular Formula | C6H4BrN3O |
| Molecular Weight | 214.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 5-Bromo-[1,2,4]triazolo[4,3-a]pyridin-3(2H)-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
5-Bromo-[1,2,4]triazolo[4,3-a]pyridin-3(2H)-one (CAS 864933-07-3), molecular formula C6H4BrN3O and molecular weight 214.02 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 5-Bromo-[1,2,4]triazolo[4,3-a]pyridin-3(2H)-one (C6H4BrN3O) is characterized by an amide group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C6H4BrN3O |
| Molecular Weight | 214.02 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related Bromo Standards
- 7-Bromo-[1,2,4]triazolo[4,3-a]pyridin-3(2H)-one (CAS 1020038-96-3)
- 5-Bromo-1H-pyrazolo[3,4-b]pyridin-3(2H)-one, 97% (CAS 1086064-44-9)
- 5-Bromo-4-methoxypyrimidine-2-carbonitrile (CAS 114969-90-3)
- 6-Bromo-[1,2,4]triazolo[1,5-a]pyrazin-2-amine (CAS 1184915-33-0)
- 8-bromo-2H-[1,2,4]triazolo[4,3-a]pyridin-3-one (CAS 1207970-25-9)
- 6-Bromo-1H-pyrazolo[4,3-b]pyridin-3-ol (CAS 1352393-60-2)
- 5-Bromo-3H,4H-pyrrolo[2,1-f][1,2,4]triazin-4-one (CAS 1403767-05-4)
- 6-bromo-1H,5H-imidazo[1,2-a]pyrimidin-5-one (CAS 140685-72-9)
Recommended Standards
- 4-Bromo-1,3-dihydro-2H-imidazo[4,5-c]pyridin-2-one (CAS 54221-74-8)
- 5-Bromo-3,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one (CAS 22276-97-7)
- 3-Bromo-4,5-dihydroxybenzonitrile (CAS 38897-25-5)
- 5-Bromobenzo[d]isoxazol-3(2H)-one (CAS 65685-50-9)
- 7-Chloro-3-(2,6-dichlorophenyl)-4-imino-3,4-dihydropyrimido[4,5-d]pyrimidin-2(1H)-one (CAS 1092793-97-9)
- n,n-Dimethylpiperazine-2-carboxamide (CAS 85817-21-6)
- 1-(4,6-Dichloro-3-pyridyl)propan-1-one (CAS 166525-49-1)
- 4-(4-Chlorophenoxy)benzonitrile (CAS 74448-92-3)
- 4-(4-Fluorophenyl)-1-p-tolyl-1H-pyrazol-5-amine (CAS 1202029-58-0)
- Quinolin-3-ylboronic acid hydrochloride (CAS 850568-71-7)
- 1-(Pyrimidin-4-yl)piperidine-4-carboxylic acid hydrochloride (CAS 179051-38-8)
- 2-Bromo-5-nitrobenzoyl chloride (CAS 80887-01-0)
- 1-(2-isocyanatoethyl)-3,5-dimethoxybenzene (CAS 480439-01-8)
- Semaglutide impurity 106 (CAS CATO-C4X-2226106)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com